How a six-year-old photo of a bleeding policeman is being used to stoke fears about the migrant caravan

The image is shocking: A Mexican policeman in riot gear bleeds profusely from gashes on his head. The culprits, according to posts spreading virally on social media, were members of the migrant caravan making its way north toward the U.S. border — and delivering violence along the way.

An early version on Facebook on Sunday says beneath this image, “And WE are supposed to believe these are just poor, helpless refugees seeking asylum??? I am 100% behind POTUS deploying our military to protect our border and keep them out.”